Hi I have question regarding supervised/automatic balancing using upmap.
I created a plan in supervised mode, but its score was not expected to improve the data distribution. But the automatic balancer triggered a considerable rebalance. Is this normal ? I thought that automatic balancing basically means running from time to time the balancer in supervised mode, More details on what I tried: I changed the balancer mode of my luminous cluster from crush-compact to upmap: ceph balancer off ceph osd set-require-min-compat-client luminous ceph osd crush weight-set rm-compat This triggered some rebalance. When done (i.e. when the status was HEALTH_OK) I issued: ceph balancer mode upmap I then tried to run the balancer in supervised mode: # ceph balancer optimize myplan # ceph balancer eval myplan But the returned value was greater than the value returned by "ceph balancer eval" I then tried with the automatic balancer: ceph balancer on which started moving objects improving A LOT the data distribution. Thanks, Massimo
_______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
